400044404408 has 128 divisors (see below), whose sum is σ = 831099709440. Its totient is φ = 179020800000.

The previous prime is 400044404399. The next prime is 400044404423. The reversal of 400044404408 is 804404440004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1187075216 + ... + 1187075552.

It is an arithmetic number, because the mean of its divisors is an integer number (6492966480).

Almost surely, 2^400044404408 is an apocalyptic number.

It is an amenable number.

400044404408 is an abundant number, since it is smaller than the sum of its proper divisors (431055305032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400044404408 is a wasteful number, since it uses less digits than its factorization.

400044404408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The spelling of 400044404408 in words is "four hundred billion, forty-four million, four hundred four thousand, four hundred eight".